Protecting-armor for tires



H. N. PAPPAS.

`PROTECTING ARMOR FUR TIRES.

APPLICATION FILED MAY l1, 1921.

1mm Aug. 23,1921.

aoV

panying drawings.

UNITED STATES VPATENT OFFICE.;

HARRY iv. Parras, or oxMULGEE, oxLArrciviA.

rRo'rEcrmG-Anmoaf Foa Trans.

To all whom t may concern.'

Be it known that I, HARRY N. PArrAs, a citizen of the United States,residing at Okmulgee, in the county of Okmulgce and State Y of Oklahoma,have invented certain new and useful Improvements in Protecting-Armorsfor Tires, of which the followingis a specification, reference being hadto the accom- This invention relates to certain improvements inprotecting armors for tires and has relation more particularly to anarmor especially designed and adapted `for use in connection with thecasing of an inflatable tire, and it is an object ofthe invention tolprovide an armor of this general character` which includes elementsadapted to be arfectually against puncture, and whereby the life of thecasing-is otherwise materially prolonged. y

Another object of the invention is to pro.- vide a novel and improvedarmor of this general character. including an expansible internalmember' extending circumferentially of the tire and wherein means areprovided will have requisite coaction with the casing. y An additionalobject is to provide a novel and improved armor ofthis` general characiof the membersfor holding said` members ter embodying an external memberand an internal member, both extending circumferentially of the tire, ormore particularly the casing thereof, `at the `tread portion and 1wherein means are provided common to both againstlmovementf relativetothe tire and particularly in a circumferential direction.l Furthermoreit is anfob'ect of the inven-"" `tion to provide a novel an improvedarmor of this general character includingan internal member consistingoftwo` sections, ad-

jacent end portions interlocking or interfit ting, while the oppositeend portions have coacting therewith means whereby said internal membermay be expanded or contracted as the: occasions of practice maynecessitate.

`In` order that m invention may be the better understood, will nowproceed to describethe same with reference to the accompanying drawings,wherein:

a protecting armor constructedin accordance A befo for extending saidmember so that the same 1 fthe vehicle. l should be held within a mudhole or the like,

. b ffwheeL y Figure l is a fragmentary view partly "in elevation andpartly in section illustrating b Specification of Letters Patent. lPttelltd Jlug.` `23, 1921 Application led Mayll, i

i921. seriai No. 468,511.

with an embodiment applied position. Y

Fig. 2i* is an enlarged sectional view taken substantially on the line2-2 of F ig.` l.

Fig. 3 is a. fragmentaryview illustrating in plan the means forexpanding the internal member.

"1ngs,`G denotes a tire casing or carcass of a type now generally in useand which is applied in a conventional manner to the rim of the wheelstructure W. Arranged withranged both externally and internally of thecasing whereby said'casing is protected efcomprises two members A and B,the member A being externally applied and the i member B beinginternally applied.

-The member A isl annular and is of such cross" sectional configurationto snugly receive the tread portion of the casing C, said casinor `Cbeing applied within the member re the inner tube T is iniatec.

The member A is preferably madeof hardened steel and its external faceat the tread portion thereof is provided entirely there-` of myinvention and in around with the `transversely directed" `grooves l`whereby the said member A has a tread surface to mesh `with the roadwayorother surface `over which the wheel W may traverse in a manner toprevent slip- The member A in its outer surface is alsoprovidedtherearound with a series of circumfcrentially spaced sockets 2arranged at substantially the transfer center-of the meniber A. `TheShanks 3 of thecalks or lugs 4 are adapted to be threaded into thesockets `Qand these calks or lugs 4 are particularly adapted for usewhen it is desired to extract the wheel from a mud hole or the like.Under normal conditions the calks or `lugs y 4 are notused but arecarried either bya person or in a suitable place of storage in In `theevent the wheel W the calks `or lugs 4 are then applied to the member Ato facilitate the extraction of the After the wheel has been removedfrom the mud hole or the like, the `calks or lugs 4 are removed.

` The outer or external member A is made l V2d sof i of me piece', fmaterial and is of a; width and crosssectional configuration to have itsopposite side marginal portions extend a 'material distance inwardlyofthe side face plied memberA affords an reffective protec-,Ltiongagainstpuncture by lass,`nails or the like, and alsoprotects1,t eycasingagainst Wear to which it would-otherwise be subjected in use asthe member 'A rides Vor contaetsfdirectly with the roadway orv otherSurfacegThe grooves 1 hereinbefore refer-red to are cut relatively deepwithin the member A vwith the side walls substantially radialwithrespect to wheel W andw-hereby the grooves 1 provide effective means toprevent slipping or skidding,4 and also mate- `rially help to speed upthe-vehicle.

of lsoft steel andcomprises two substantially edge `wall'of thesectio'n5j has disposed entirely therealonga groove or mortisef?, preferablysubstantially circular in' cross section and which is adapteditosubstantiall snugly f v receive an youtst'anding tenon orri `8 car-y iyrifed b vthe coacting end or edge wall of the seconl secu@ i TheOPPO'St-ferlil` Ortions of the sections` Y`5 fand 6 of themem er VBoverlap, and said 'overlappingfport1ons9 are reversely beveled te1permitexpansion of the member B withs v.vut iany,resultant spacebetween`said end 'portionsgof the 'sections'and 6,

' portion of the casing or carcass C and i `when'the member B is appliedwithin the` {ttcasi j pose vcircumf erentrally of said casing or' fpandedto assure said member havin 65 and tight contact with the innersur ace of "Each of thefsectionsv 5 and-6 of.ae1f0SS s vsectionalconfiguration substantially conformingto the innerlface of wall of the'or'carcass C, said member B `is discarcass, the, applied member B, inaddi- `tion to providing further protection against puncturepservesfasareinforcement of the tread portion of the'casing or carcass C and: suchreinforcement is of particular advan-A tage when myimproved armor isyapplied to which-,has beel1-funduly worn.

"vided with the circumferentially directed slotslD, and each Vofsaid'slots has extndin inwardly thereof the teeth '11, said teet beingarrangedialong a side of one ofthe s lots 11 and theopposite side of thesecond slot. Meshing with the teeth 11 is` a toothed threa ed engagementwithin the socket 15 00' produced in the inner face of-the member A atsubstantially the transfer center thereof.

Uponrotating the head v12 and bolt 14 in fone. direction the member Bwill Ybe exclose The internal member BV is preferably madesemicircular-sections 5l and 6. An end or` effect the requisite rotationof the .herein disclose. the outer face of the-head 12. provided with a(groove V17 in which ,is adept-l f operated, `and itk willA'Theoverapping portions ofthe sections 50; 5. alidf of the internalmember B are Vpro-V the casing or carcass C. Rotation of the said head12. and bolt 14 in the opposite direction results in the contraction ofthe member B so that the same may be readily remved when desired. Whenthe member B is applied, it is to be understood that the casing orcarcass C is disengaged from the rim andby having the member B comprisedof the two sections 5 and 6 the appli cation or removal of saidmember Bis materially facilitated.

After the member B has been p rly applied within the casing or carcass Land before-the tube T is inserted, a liner 16 of: Vcanvas or. the likeis arranged within the casing or carcass C and over the applied member`B. This liner 16 lserves to protect the tube T against any possibleinjury thereto by the member B.

.When the bolt 14 is in applied position, the outer face of the head 12is substantially flush with the concave surface of the member, B so thatthe possibility of said bolt 14 or more particularly the head 12thereof.r

injuring the appliedl tube T is substantially eliminated.

The bolt 1 4 also serves to. rovide means to hold the applied membersand B .against independent movement relative to thecasing or carcass Cand particularly in a circumferential direction.

While any means may beY e lo ed to tot 14, 1

ed'tobe engage tool.

While in ractice, the members A and B a screw driver or kindred can beemp oyed one indepndently of the.

other but 1t is preferred 't they be und jointly.

` From the `foregxiing Ydescription it is thought to be obvious that aprotecting armor for't1res constructed in'accordance with my inventionis particularlywell adapted for'" use by reason Yof the convenienqa' andfacility with which it ma be assembledland be obviousthat my inventionsusceptible of 4some chan and modification without depart` fromt eprinciples and spirit thereof an for this reason I do not wish to beunderstood as limiting myself to the precise arran ment jandformation-of Athe several parts eren shown 1n carrying out my inventionin prac` l ticeexcept as hereinafter claimed. head `12 carried by a bolt14 extending .e thjrlou h the casingor carcass C and having' I claim: 1.An internal armor for a tire casing embodying an expansible memberadapted to coact with the tread portion of the and vextendcircumferentially thereaiounndr and means for expanding orcontractingsai member.

2. internal armor f or a tire em-V bodying an expansible member adaptedto i` coact with the tread portion of the casin and extendcircumerentially therearoun said member being provided with overlappingend portions and means coacting with said overlapping end portions forexpanding or contracting the member.

3. An internal armor for a tire casing embodying an expansible memberadapted to coact with the tread portion of the casino' and extendoircumferentially therearoun said member including overlapping endportions, said overlapping end portions being provided Withcircumferentially disposed slots and having teeth extending Within theslots and a toothed member` engageable With said teeth for expanding orcontracting the4 member.

4.-. An internal armor for a tire casing embodying an expansible memberadapted to coact with the tread portion of the casin and extendcircumferentially therearoun said member comprising two sections,adjacent ends of the sections interlocking, the opposite end portions ofthe sections overlapping, and means coacting with theoverlappingportions for expanding or contracting the member.

5. In combination with a tire casing, an

annular member of a cross sectional configuration to snugly receive thetread portion of the casing and an expansible member extending-circumferentially of the casing and arranged therein, said expansiblemember coacting with the tread portion of the casin 6. In combinationwith a tire casing, an annular member of a cross sectional configurationto snugly receive the tread portion of the casing and an expansiblemember extending circumferentially of the casing and arranged therein,said expansible member coacting with the tread portion of the casing,and means disposed through the casing and engageable with the firstnamed member for expanding or contracting the second named member.

In testimony whereof I hereunto affix my signature.

HARRY N. PAPPAS.

